List your questions from most important to least important in case time runs out. A vacuum assisted biopsy uses a special needle attached to a vacuum device to take samples of breast tissue for examination. Others are used in cases of advanced breast cancer to slow the growth of the tumor. Breast self-exam is a convenient, no-cost tool that you can use on a regular basis and at any age. Removing a limited number of lymph nodes How do you test for breast cancer node biopsy. Mayo Clinic uses many cutting-edge treatments, including scalp cooling therapy to reduce chemotherapy-induced hair loss as well as vaccine and immunotherapy, available through clinical trials, to prevent tumor recurrence for patients with high-risk disease.